Code learning device of tire pressure monitor

• US 6,753,767 B2
• Filed: 05/15/2002
• Issued: 06/22/2004
• Est. Priority Date: 05/17/2001
• Status: Expired due to Fees

• Current Assignee: Lite-On Automotive Corp. (Lite-On Technology Corporation)
• Original Assignee: Lite-On Automotive Corp. (Lite-On Technology Corporation)
• Inventors: Kuan, Frank, Lin, Jordan, Lin, Sheng Hsiung
• Primary Examiner(s): TWEEL JR, JOHN ALEXANDER
• Application Number:
  US10/144,852
• Publication Number:
  US 20020171539A1
• Time in Patent Office: 769 Days
• Field of Search: 340/442, 340/445, 340/447, 731/462, 731/465, 731/468
• US Class Current: 340/442
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver

Abstract

A code learning device of a tire monitor is used for motor vehicles having a tire monitor and a plurality of sensors, whereby each sensor is installed in individual tires of the motor vehicle, and each sensor module includes a radio signal transmitter for transmitting the conditions of the tires and the specific code of the sensor module via radio frequency signals. The code learning device includes an electric module having a processor, a memory, and a radio frequency signal receiver electrically coupled to the electric module for receiving the radio frequency signals, and dividing the radio frequency signals into a data signal and an amplitude signal. The data signal includes the conditions of the tires and the specific code of the sensor module such that the electric module can confirm the corresponding relation between the tires and the sensor module by way of the numeric value of the amplitude signal.

Claims

1. A code learning device for tire pressure monitor, applicable in a motor vehicle with a tire pressure monitor, and a plurality of sensors installed in each of the tire of the motor vehicle wherein each sensor module has a radio signal transmitter for transmitting the conditions of the tires and a specific code of the sensor module via the radio frequency signal, and the said code learning device comprising:

an electric module having a processor and a memory; and

a radio signal receiver electrically coupled to the electric module for receiving the radio frequency signals, and dividing the radio frequency signals into a data signal and an amplitude signal wherein the data signal comprises the conditions of the tires and the specific code of the sensor module thereby confirming the corresponding relation between the tires and the sensor module installed in it via the numeric value of the amplitude signal.

2. The code learning device for tire pressure monitor as claimed in claim 1 further comprising:

three slave electric modules, wherein each has a processor and a memory;

three radio signal receivers, wherein each is electrically coupled to the three slave electric modules respectively for receiving the radio frequency signals, and dividing the radio frequency signals into a data signal and an amplitude signal, wherein the data signal comprises the conditions of the tires and the specific code of the sensor module; and

a serial data input and a serial data output for electrically coupled with the slave electric modules for the data transmission, thereby lettingthe electric module and the slave electric modules correspond with the four tires of the motor vehicle, and confirming the corresponding relation between the four tires and the sensor module installed in them via the numeric value of the amplitude signal.

3. The code learning device for tire pressure monitor as claimed in claim 1, further comprising a radio frequency signal transmitter for transmitting the corresponding relation between the tires and the sensor module installed in it to the tire pressure monitor of the motor vehicle via the radio frequency signal.

4. The code learning device for tire pressure monitor as claimed in claim 1, wherein the said amplitude signal can confirm the position of the tire when its value is higher than the predetermined value.

5. The code learning device for tire pressure monitor as claimed in claim 1, wherein the said electric module further comprises a monitor for the operator to observe the operation of the code learning device more easily.